What is the purpose of a Special Local Need Registration (SLN)?

The purpose of a Special Local Need Registration (SLN) is to permit certain pesticide uses that are not specifically listed on the Section 3 labeling, which is the general registration for pesticides approved by the EPA. This type of registration allows states to address unique pest problems and environmental conditions within their borders that may not be adequately covered by federal labeling.

SLN registrations provide flexibility for states to manage specific agricultural and public health needs while ensuring that pesticide use remains safe and effective. These registrations typically involve local data and considerations that justify the need for expanded use patterns, and they are essential for addressing localized pest challenges while complying with broader federal regulations.

In contrast, the other options either describe functions that are already covered by federal law or do not directly relate to the specific purpose of SLN registrations. For example, allowing uses under federal law and changing existing labeling are managed within federal and state regulatory frameworks, while registering new pesticide ingredients involves a separate process that does not align with the SLN's intent. Thus, the focus of an SLN is specifically on extending label uses to meet local agricultural or ecological needs.